Munawar, M., L. Musyarofah, E. Fadilah, and L. Lestariningsih. “Using SISPEL Application for Character Building of Students in Vocational High School”. Acitya: Journal of Teaching and Education, vol. 6, no. 1, Jan. 2024, pp. 90-112, doi:10.30650/ajte.v6i1.3791.